One piece pistol grip



FIG. 1 is a perspective view from the right rear of a one piece pistol grip, showing my new design;

FIG. 2 is a perspective view from the left rear thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a perspective view from the left front thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a one piece pistol grip, substantially as shown and described. 